[He is silent for a moment as he tries to decide how to start this. He didn't have a lot of experience with explaining this. Most of the few people who knew had found out on their own and he'd only needed to confirm their guess.]

I'm actually seventeen. About a year ago I was poisoned, and for some reason it did this to me instead of killing me. Peter thinks he might be able to find a cure, but we need to bring in someone who knows more of the medical side to make sure that the cure doesn't kill me.

[Apparently bluntness was the way to go. ]